How to create Groove playlists on your Sonos system

We've shown you how to get up and running with a new Sonos system with Windows 10 and how to get your Groove on and get set up with Microsoft's streaming service. So, you're enjoying your tunes now in potentially every room of the house. But did you also know you can create new Groove playlists from within the Sonos app?
Here's how. Again, as with other posts in this series we're using the offical Windows desktop application, so your mileage may vary in mobile and unofficial apps.